
#ifdef a

#include<stdio.h>
#define LEAPYEAR(year) (year % 4 == 0 && year % 100!=0)||(year % 400 == 0)?1:0

int main() {
	int year;
	scanf("%d", &year);
	if (LEAPYEAR(year))
		printf("%d is a leap year", year);
	else
		printf("%d is not a leap year", year);
	return 0;
}
#endif

